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(19)

(11)

2 662 832

(13)

(51)

IPC

C07D237/04(2006-01-01)

A61K31/50(2006-01-01)

A61K31/501(2006-01-01)

A61K31/5025(2006-01-01)

A61K31/504(2006-01-01)

A61K31/506(2006-01-01)

A61K31/5377(2006-01-01)

A61P3/12(2006-01-01)

A61P13/12(2006-01-01)

A61P43/00(2006-01-01)

C07D401/12(2006-01-01)

C07D401/14(2006-01-01)

C07D403/12(2006-01-01)

C07D471/04(2006-01-01)

C07D487/04(2006-01-01)

C07D487/18(2006-01-01)

(21) (22)

Application

2015143507, 2014-03-13

(24)

Start date

2014-03-13

(22)

Actual filing date

2014-03-13

(45)

Published

2018-07-31

(72)

Inventor

Okhtake JosikhitoOkamoto NaokiOno EsiyukiKasivagi KhirotakaKimbara AtsusiKharada TakeoKhori NobuyukiMurata EsikhisaTatibana KadzutakaTanaka SotaNomura KenitiIde MitsuakiMidzuguti EjsakuItida YasukhiroOkhtomo SuitiKhoriba Naosi

(73)

Holder

Chugai Sejyaku Kabusiki Kajsya

DIHYDROPYRIDAZINE-3,5-DIONE DERIVATIVE Russian patent published in 2018 - IPC C07D237/04 A61K31/50 A61K31/501 A61K31/5025 A61K31/504 A61K31/506 A61K31/5377 A61P3/12 A61P13/12 A61P43/00 C07D401/12 C07D401/14 C07D403/12 C07D471/04 C07D487/04 C07D487/18

Abstract RU 2662832 C2

FIELD: chemistry.

SUBSTANCE: present invention provides a dihydropyridazine-3,5-dione derivative or a pharmaceutically acceptable salt thereof, a prophylactic and / or therapeutic agent for hyperphosphatemia, secondary hyperparathyroidism and chronic renal failure, comprising the compound as an active ingredient.

EFFECT: present enables to solve problems that arise when using phosphorus adsorbents.

18 cl, 45 dwg, 418 ex

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RU 2 662 832 C2

Authors

Okhtake Josikhito

Okamoto Naoki

Ono Esiyuki

Kasivagi Khirotaka

Kimbara Atsusi

Kharada Takeo

Khori Nobuyuki

Murata Esikhisa

Tatibana Kadzutaka

Tanaka Sota

Nomura Keniti

Ide Mitsuaki

Midzuguti Ejsaku

Itida Yasukhiro

Okhtomo Suiti

Khoriba Naosi

Dates

2018-07-31—Published

2014-03-13—Filed